1 Corinthians 14:19

Modern King James Version

yet in a church I desire to speak five words with my mind, so that I might also teach others, than ten thousand words in a tongue.

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so that you might know the certainty of those things in which you have been instructed.

I thank my God that I speak more languages than all of you;

Brothers, do not be children in your minds, but in malice be like infants, and in your minds be mature.

The one speaking in a tongue builds himself up, but he prophesying builds up a church.